Attaching bail-ears to covered vessels



(No Model.) W. KNAPP.

v ATTAGHING BAIL BARS TO'QOVERED VESSELS. No. 249,371. Patented Nov.8,1881.

' ffiijz 27171 *d UNITED STATES PATENT OFFICE.

GEORGE w. KNAPP, 0F BALTIMORE, ARYLAND.

ATTACHlNGBAlL-EARS TO COVERED VESSELS.

SPECIFICATION forming part of Letters Patent No. 249,371, dated November8, 1881,

Application filed September 13,1881. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. KNAPP, a citizen of the United States ofAmerica, residing at Baltimore, in the county of Baltimore and State ofMaryland, have invented certain new and useful Improvements in AttachingBail-Ears toOovered Vessels; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to makeand usethe same, reference being had to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthis specification.

My invention relates to an improved mode of attaching ears to coveredsheet-metal vessels-such as oil-cans, paint-cans, and the like and willfirst be described in connection with the construction of such a vessel,and then particularly designated in the claim. I

In the drawings hereto annexed, Figurel is a side view of a vesselprevious to the attachment of the cover, showing the first position ofthe ear. Fig. 2 is a top view of the vessel ready for the ears andcover. Fig.3 is a vertical section of avessel, showing the parts readyfor attachment. Fig. 4 is a View of a vessel with each of the partsintheir proper position to be attached, and a grooved roller,indicatingthe means employed for attaching the parts. Fig. 5 is a view of the ear.Fig. 6 shows two edgewise views of the ear. The one to the left is theshape in which the ear is first bent; the

one to the right is the shape the ear finally assumes. Fig. 7 shows theear attached to the vessel as it appears immediately after the use ofthe grooved roller. Fig. 8 is the appearance of the same at the nextstage. Fig. 9 is the finished article with bail attached. Fig. 10 isasectional view on a larger scale, showing the position of the earbetween the cover and body.

The letter A designates the cylinder or body of the can or vessel. Thismay be straightsided or flaring. The rim or edge of the ves sel,, isfirst formed with aslight flare or outward flange, b, by any suitablemeans. At that point where the ears are to be attached the flange is cutaway, as shown at c, to an extent corresponding with the width of theear. The ear dis first bent at its lower end hook shape, as shown inFig. 6. The bent ear is then sel, said shoulder and the radial flangebeing in contact with the flange b of the vessel.. It will be seen thatin this position the bent or hook-shaped part d of the ear is betweenthe annular shoulder and the radial flange against the one side of d andthe outward flange, b, on the rim of the vessel on the other side of d.Fig. 4. shows the parts in the position just described, and whenin thecourse of construction the vessel has arrived at this stage it is placedin a lathe, and by means of a grooved roller, I, which is brought tobear against the radially projecting flange while the vessel is turningin the lathe,-the radial flange of the cover is rolled or spun over, asshown at 9, so as to inclose and gripe the flange b of the vessel, andthereby the cover is firmly attached to the body of the vessel and thebail ear is firmly attached also. The ear, which up to this time hasbeen turned down against the body of the vessel, as seen in Figs. 1, 4,and 5, is now bent to an upright position, as shown in Figs. 8

and 9, giving the ear, when viewed edgewise, theform shown'to the rightof Fig. 6.

It will be noticed that the ear is not coiled in or interlocked withinthe beaded or turnedover edge 9 of the cover of the vessel, and,further, that the cylinder orbody has no beaded or turned -over edge;but the car, it will be seen, is simply clamped by its hook-shaped partin the seam which joins the cover and body of the vessel. Up to thestage lastdescribed no solder or rivets are employed in attaching thebail-ear, and in some classes of work nothing further is necessary; butin the better description of work a little solder is applied at thepoint indicated by the letter h in Fig. 9,. which holds the upright earsecurely to the beaded edge of the cover. The bail n is finally attachedto the ear, and the device is complete.

I have described one manner of attaching I the cover, whereby thebail-ear is secured in the seam of and between the cover and body of thevessel. This precise manner, however, of attaching the cover is not atall necessary to the carrying out of my invention of attaching the ear,as the ear may be secured in substantially the same way, even though themanner of forming the seam be different.

Having described my invention, I claim and desire to secure by LettersPatent of the United States In a sheet-metal vessel the combination of abody, a cover for the body, and abail-ear secured in the seam betweenthe cover and body, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE W. KNAPP.

Witnesses:

CHAS. B. MANN, W. A. NUMsEN.

